Demonstrating or advertising device



- Jan. 15, 1924. 1,481,143

C. MUNZNER DEMONSTRATING 0R ADVERTISING DEVICE atto.- nu

Filed April so. 192s As sheets-sheet! Jan 9 C. MUNZNER DEMONSTATING 0R ADVERTISING DEVICE Filed April 30. 1925 3 Sheets -Sheet 2l 1 1 N all( `S\ s L\ I Jan. 15 1924.

C. MUNZNER DEMONSTRATAING 0R ADVERTISING DEVICE '3 Sheets-Sheet 3 31a/vanto@ Filed April 30 1923 lil Patented dan., 15, 1924.

'W 'las Laarne CHARLES' MUNZNER, or cI-IIOAGO, ILLINOIS, ASSIGNOE To AMERICAN srovE cora- PANY, or ST. LOUIS, MISSOURI, A CORPORATION OE NEW JERSEY.

DEMONSTRATING ORrADVERTISINC- DEVICE.

appncanon inea April 30,1923. serial No., 635,759.

T0 all whom it may concern:

Be it known that I, CHARLES MUNZNER, a citizen of the United` States, residing at Chicago, in the county of Cook and State of lllinois, have invented certain new and useful Improvements in a Demonstrating or Advertising Device, of which the following isa specification, reference being had therein to the accompanying drawing.

This invention relates to improvements in a demonstrating or advertising device, Jfor an oven heat regulator. 'Y

My improved device is designed and constructed primarily for advertising and deml onstrating the operation and eiiiciency of the Lorain oven heat regulator, which regulator is Vpatented and works on the thermostat principle.

Althoughl have Vstated that my device is for demonstrating a Lorain oven heat regulator, l wish it to be understood that the same could be utilized with regulators of other forms without departing materially from the scope of my invention.

The particular embodiment of the invention in the drawing is adapted for use for thermostatic regulators, such as shown in the following B. E. Meacham Patents Nos. 1,236,335, August 7th, 1917; 1,334,776, March 23rd, 1920; 1,339,964, May 11th, 1920, and other improved patented'structures of thesame patentee, which it is not thought necessary to enumerate.

The object of this invention is to provide a demonstrating device for temperature controlling regulators.

Another object of the invention is to provide a device for demonstrating the operation or" the Lorain oven heat regulator.

A further object of the invention is to provide an automatic demonstrator for temperature controlling regulators.

Other objects and improved results ot my invention will appear in the following description and accompanying drawings.

Figure 1 is a perspective view of my improved demonstrating device, the doors otthe device being shown in open position.

Fig. 2 is a vertical sectional view of the device, the doors being shown in a closed position in Jfull line and in an open position in dotted lines.

Fig. 3 is an end view of my improved device showing afmoditied form with the auto'- matic motor-driven-'door operating means.

Fig. 4 is a rear view 'of the automatic door.-

operating mechanism,`showing its operativer connection with the doors ot the device.

Fig. 5 is an end view of my improved device showing the thermostatic control and the cards carrying' the descriptive matter, the rear door of the device being sho-wn in dotted line. y

Referring ynow to the drawings in which like parts are designated by similar reference numerals throughout they description, A represents a narrow, preferably metal, box having closed sides 5, and a closed top 6 and bottom 7. The fronty of the boX has a closed window. 8 across its bottom above which is pivotally mounted, as at 9, in the closed sides 5, a door 10, adapted to swing inwardly, as clearly appears in Figs. 1 and 2 of the drawings.

The back of the box is closed across its bottom by arrear wall 11, above which is pivotally mounted in the side walls 5, as at 12, a door 13, which is adapted to swing outwardly as clearly appears in Figs. 1 and 2 of the drawings.

Suitably supported within the bottom of the metal boX A is a gas-burner 14, so positioned as to be visible from the outsideof the box through vthe front window 8. One

end of the burner 14 is connected in the' usual manner to. the regulator B, which receives a supply of gas through any ordinary connection.

Ordinarily, the regulator would be enclosed in a metalhousing, but to make the operation of the regulator visible, I have f enclosed the working parts with a glass housing designated at 1,5. The regulator is door is provided with a handle 18, for opening and closing-the doors. Y

As clearlyapears in Figs. 2 and 3 of the drawings,lthe rear door 13 of the box A,

does not reach entirely to the top ot theV box. Above the door is an upper rear wall 19 upon whichis supported a vertical standpoint 26, which is above the box top, withfl.

plurality of radialr arms`27, adapted. to receive and support cardsV orvsigns 28, upon which will be printed suitable reading Inatter to describe the operation of the device.

Operation. l The operation ofthe .form .of device, as shown in Figs. land 2, 1s as follows:

The regulator B having previously been attached to a gas supply, the gas is turned on and the burner y4 lighted. The doors of the devices arev then closed and the interior of tliebox` allowed to heat. The regulator wheel 16 is then set to any ot the marked temperatures on vthe wheel. lVhen Vthe heat withinthe box has reached the degree of heat at which the regulator wheel is set, the regulator will Jfunction and reduce the gas supply so thatthe burner will only'burn suliiciently high to maintain the heat within the box at the set temperature of the regulal tor wheel.

The operation of the regulator and the reducing of thelame of the burner will be apparent through the glass window 8 ot' the vbox and the glass housing 15 of the regulator.

When the regulator has functioned to'freduce the liame of. the burner, the doors ot the box are opened so that the interior of the box. which is in reality an oven, can cool. The regulator wheel has not been moved so that asV soon asthe interior of the oven cools to a degreeof heat less than that at which the regulator wheel is set, theregulator will operate to increase the gas supplyl and thisV increase will become apparent asthe flame at the burner ,14 will enlarge.

lfhen` this` second operationl has taken place, the doors of theoven will be closed and the operation as described will again occur. 4 V

lt will be readily apparent that an` indefinite number of the two operationaljust described. can be carried A-on by merelyopening and closing the oven doors. kDuring the operations ot the regulator, it will `be seen that as theldoors are opened, the link 24 of therear door is carried outwardly and that when4 the pin 22 ot the vertical upright 2O engages the end ofthe segment slot 23, the upright will be revolved ninety degrees. lt will also be apparent when the doors are closed, that` theupright will be again reA volved when its pin 22 engages the opposite end of the link slot 23. The dilference in 'signs facing the front of the oven might carry suitable wording, such as Open door cools the oven, Regulator increases size ot the lame, and when the dors are closed,

the sign might carry suitable words, such n as Closed doors heat the oven, Regulator dccreasesthe size of the flame.

Coming now to the modified form of the device, as described in Figs. 3 and 4 of the drawing, it will be seen that the box A has the same top 6 and bottom 7, and front glass .window 8, and rear door 13. ln this form, l have done away with the front door 10 and have made the upper part of the oven front solid as at 30.

The oven is provided with the same upright 2O and supported in a similar manner as at 21, and having in its lower end the opening 22. The rear door 13 carries the same bracket 25, which in turn carries the segment 24, having the slot 23, although the link 24 is of a slightly di'li'erent shape and slightly shorter than the Segment shown in the other form of the device. The segment is shortened for the reason that in this formy the rear door does not swing outwardly quit-e as tar as in the other form of oven.

ln place of the handle 18 on the rear door, l have provided an outwardly extending arm 31, which pivotally engages, as` at r'32, the upper end of a bell-crank 33, which vis pivotally supported at 34 upon a vertical standard 35. The opposite end of the bell- `crank 33 is slotted, as at 36, and this slot engages a pin 37, carried concentrically upon the face of the wheel 38, which f is driven `through the gears 39, 40 and 41y of an electrical motor 42. As the electrical motor is in close proximity to the heat of the oven A, it has been deemed ladvisable to provide a tan 43 for cooling the motor.

From the foregoing it will be readily ap? parent that the electrical motor willperiodically open and close the rear door 13 of the oven or box and as the door is opened and closed the vertical upright 20 will be revolved and the diilerent cards supported upon the upright will be shown to the front of the oven.

lt will also be readily seen that through the operation ot the pin 3T in the elongated slot 3G of the bell-cranklever, 33, andv due to the gearing 39, 40 and 4l, the opening yand closing of the door can be timed to allow between the movement of the door the funcllO tioning of the oven regulator, which has been heretofore described. lNo attempt is made to describe the particular size of the lll the speed of the motor to accomplish the proper timing of opening and closing the door. The various elements entering into the timing would have to be regulated by the conditions, namely the size of the burner and the size of the oven. variation in the size of either would affect the conditions so that no standard speed for driving the gears can be given. A simple manner for setting the timing would be to have a rheostat in the electric line to the motor so that the speed of the motor can be varied and controlled as the use of the device under its operating conditions would dictate. A device such as shown in Figs. 3 and 4c of the drawing, could be put in a store window and would automatically operate throughout a definite period and would fully and advantageously demonstrate the oven heat regulator.

A device such as is shown in Figs. l and 2, of the drawings, which is hand-operated, would necessitate the presence of an attendantV to open and close the doors between the operations of the regulator.

I wish it to he understood that although I have shown and described a boX form of device for demonstrating the operations of a. heat regulator, that l do not restrict myself to this particular form, as devices for a similar purpose could be made in a diderent manner and still be within the scope of my invention.

Having thus l claim and Patent is l. A demonstrating or advertising device for fuel regulators or the like, comprising a housing having a burner therein, a fuel regulator for the burner, and means to automatically periodically cool the housing.

2. A demonstrating or advertising device for fuel regulators, comprising a housing having a burner therein visible from the outside, a fuel regulator for the burner, and means to automatically periodically cool the housing, for the purpose described.

3. A demonstrate-r or advertising device for fuel regulators, comprising a housing having a burner therein, a fuel regulator' for the burner, means to automatically periodically cool the housing, and the fuel regulator enclosed within a glass housing, for the purpose described.

a. A demonstrating or advertising device for fuel regulators, comprising a housing having a burner therein, a fuel regulator for the burner, means to automatically periodically cool the. housing, and the operation of the burner and of the moving parts of the fuel regulator visible, Vfor the purpose described.

5. A demonstrating or advertising device gears or described my invention, what desire to secure by Letters for fuel regulators, comprising a housing having a burner therein, a fuel regulator for the burner, descriptive reading matter of the device operatively connected therewith, whereby the reading matter is periodically changed, and means to periodically cool the housing, for the purpose described.

6. A demonstrating or advertising device for a thermostatic fuel regulator, comprising a housing having a gas burner. therein, a thermostatic regulator for' the burner, and means to automatically cool the housing periodically, whereby the thermostat will periodically operate.

7. i demonstrating or advertising device for fuel regulators, comprising a housing, a burner therein, a fuel regulator for the burner, and an automatic means for periodically cooling the housing, whereby the regulator is caused to periodically operate, for the Vpurpose described.

8. A demonstrating or advertising device for fuel regulators, comprising a housing having va burner therein, a fuel regulator for the burner, means for periodically cooling the housing to cause the regulator to operate periodically, and a movable support adapted to carry descriptive reading matter of the regulator operation operatively connected to the device, whereby the reading matter changes periodically with the operation of the regulator.

V9. A demonstrating or advertising device for a fuel regulator, comprising a housing having a gas burner therein, a door for the housing, a fuel regulator for the burner, and means to open the housing door to automatically periodically cool the interior of the same for the purpose of causing the regulator to operate.

l0. A demonstrating or advertising device for a fuel regulator, comprising a housing having a burner therein, a fuel regu.

lator for the burner, a door for the housing, ay support adapted to carry card signs or the like, said support in operative connection with the door, whereby the opening and closing of the door moves the supportto change the position of the cards, and said door being the means for allowing the interior of the housing to cool, for the purpose described.

11. A demonstrating or advertising device for fuel regulators, comprising a housing having a burner therein,y a door for the housing, a fuel regulator for the burner, and power driven means in operative connection with the door to periodically open the same, for the purpose described.

ln testimony whereof l hereunto aiiiX my signature.

CHARLES MUN ZNER. 

